PTFE Washer Seal from China
A flat washer seal crafted from polytetrafluoroethylene (PTFE), a fluoropolymer of heading 3904, for chemical processing equipment flanges. Classified in 3926.90.45.90 as an other plastic washer for sealing. Its chemical resistance makes it ideal for corrosive environments.
Duty Rate — China → United States
38.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide chemical analysis reports proving PTFE predominance per Chapter 39 polymer notes
• Label as 'sealing washer' to distinguish from plain spacers under 3926.90.99
• Ensure dimensions comply with USNote for small articles if seeking special rates